Identify potentially compromised hosts within the network based on a threat analysis report containing malicious IP address or domains Implementing Cisco Cybersecurity Operations (210-255) A threat analysis report helps an analyst by providing a list of all of the IPs or domains that a potentially compromised host has been communicating with. This information can help […]
Describe the retrospective analysis method to find a malicious file, provided file analysis report Implementing Cisco Cybersecurity Operations (210-255) The above image is a screenshot from a Cisco Firepower Management Center. In particular, it is a Network File Trajectory. In this case, it’s not overly interesting since the file was only seen going from one […]
Describe 5-tuple correlation Implementing Cisco Cybersecurity Operations (210-255) Describe the 5-tuple approach to isolate a compromised host in a grouped set of logs Implementing Cisco Cybersecurity Operations (210-255) As noted in the discussion of Netflow, the 5-tuple consists of the Protocol, Source IP, Source Port, Destination IP, and Destination Port. When doing a correlation, the […]
Interpret common data values into a universal format Implementing Cisco Cybersecurity Operations (210-255) For this objective, I would suggest using Security Onion to collect some data from a firewall and IPS. Within the Security Onion stack is a tool called ELSA. ELSA is an open-source SEIM product. It takes the logs and puts them into […]
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